Property and Equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Millions	Jan. 31, 2025	Jan. 31, 2024
Long-Lived Assets Held-for-Sale [Line Items]
Property and equipment, gross	$ 99	$ 110
Less accumulated depreciation	(56)	(62)
Property and equipment, net	43	48
Furniture and fixtures
Long-Lived Assets Held-for-Sale [Line Items]
Property and equipment, gross	15	18
Leasehold improvements
Long-Lived Assets Held-for-Sale [Line Items]
Property and equipment, gross	$ 84	$ 92